25-08-2017, 09:32 PM
ELECTRO ENCEPHALO GRAPHY(EEG)
EEG-132 Pract..ppt (Size: 2.62 MB / Downloads: 768)
Electroencephalogram
EEG is the record of electrical activity of brain( superficial layer i.e. the dendrites of pyramidal cells) by placing the electrodes on the scalp.
Objectives of EEG practical
Identify and describe changes produced by provocation tests.
e.g. eye opening & closing, intermittent photic stimulation (IPS) clapping sound, induce thinking & hyperventilation.
Appreciate clinical uses of EEG
Procedure of EEG recording
A standard EEG makes use of 21 electrodes linked in various ways (Montage).
Ask the subject to lie down in bed.
Apply electrode according to 10/20% system.
Check the impedance of the electrodes.